10. Viruses and cells are different in many ways. In which of these ways are viruses and cells most similar? 1. composition of outer covering

2. composition of genetic material

3. stages of reproduction

4. stages of life cycle

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

What would happen if the krill were removed from the food web

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above